There is no 1990 CTPP data available at the Census Tract level for my study area. I have 1990 CTPP data by TAZ and 2000 data by TAZ and Census Tract. The TAZ are the smaller areas. I would like to somehow be able to "merge" the 1990 TAZ into the 2000 tracts so I can compare across time with all the data normalized to the 2000 tracts. I don't think merge is correct word. I am not sure how I can change the 1990 TAZ into 2000 Tracts. Any suggestions would be very appreciated.
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